Browse free open source C++ Compilers and projects below. Use the toggles on the left to filter open source C++ Compilers by OS, license, language, programming language, and project status.

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  • 1

    MinGW-w64 - for 32 and 64 bit Windows

    A complete runtime environment for gcc

    The mingw-w64 project is a complete runtime environment for gcc to support binaries native to Windows 64-bit and 32-bit operating systems.
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    Downloads: 56,117 This Week
    Last Update:
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  • 2
    Small Device C Compiler (SDCC)

    Small Device C Compiler (SDCC)

    The Small Device C Compiler (SDCC), targeting 8-bit architectures

    SDCC is a retargettable, optimizing standard C (ANSI C89 / ISO C90, ISO C99, ISO C11 / C17, ISO C23) compiler that targets a growing list of architectures: STM8, MCS-51, DS390, HC08, S08, Z80, Z180, R800, Rabbit, SM83, eZ80 in Z80 mode, Z80N, TLCS-90, Padauk PDK14 and PDK15 microprocessors. There also is incomplete support for the Microchip PIC16 and PIC18 and the Padauk PDK13 and MOS 6502.
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    Downloads: 1,110 This Week
    Last Update:
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  • 3
    WinAVR
    WinAVR (tm) is a suite of executable, open source software development tools for the Atmel AVR series of RISC microprocessors hosted on the Windows platform. Includes the GNU GCC compiler for C and C++.
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    Downloads: 847 This Week
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  • 4

    MinGW-builds

    Dual-target (32 & 64-bit) MinGW-W64 compilers for 32 & 64-bit Windows

    Projects joined MinGW-W64, and the new builds will be available on the MinGW-W64 site: https://sourceforge.net/projects/mingw-w64
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    Downloads: 284 This Week
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  • 5

    open-watcom

    Open Watcom C/C++ compilers and tools Fork

    C/C++ compilers and tools to compile and build for targets DOS 16/32-bit, RDOS, Windows 16/32-bit, OS/2 16/32 bit, Linux 32-bit (x86), Netware running on host OS DOS, Windows 16/32/64-bit, OS/2, Linux 32/64-bit (x86/x64) Open Watcom is now completely moved to GitHub Open Watcom 2.0 https://github.com/open-watcom/open-watcom-v2#open-watcom-v2-fork Open Watcom 1.9 https://github.com/open-watcom/open-watcom-1.9
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    Downloads: 73 This Week
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  • 6
    WinXP, Vista, Win7, linux, OpenSolaris native port of the BSD PSPSDK (ps2dev.org), with freely distributable import libraries and header files (DevPaks) for building cross compiled homebrew Sony PSP (PlayStation Portable) applications.
    Downloads: 48 This Week
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  • 7
    CQSAT is a powerful, comprehensive and extensible framework for static analysis of program source code and detection of software defects.
    Downloads: 0 This Week
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  • 8
    A plug-in for the Eclipse C/C++ Development Tooling (CDT) that adds new Project Types specific to PowerPC C/C++ development.
    Downloads: 0 This Week
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  • 9

    FLSDK

    Build System for FLDIGI Applications

    FLSDK is collection of custom written scripts designed to ease compiling the FLDIGI Suite of applications, including NBEMS, from source code. Included in the scripts, is the ability to install and manage MXE Cross. MXE ( M cross environment ) is a Makefile that compiles a cross compiler and cross compiles many free libraries such as SDL and Qt, FLTK and many more. FLSDK uses MXE to build ( compile ) both Win32 test binaries and the NSIS installer associated with each application.
    Downloads: 0 This Week
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  • 10

    GCCE4Symbian

    Provide latest GNU toolchain for Symbian developers

    Provides bleeding-edge GNU toolchain for Symbian. GCC still supports Symbian therefore project active. All thanks for me and my hard-work GCC still supports Symbian. Benefits: moderm libraries require new compiler features and languange standarts. More software will be coming to small old phones! Binutils and GDB stop support Symbian and last provided versions are 2.29.1 and 10.2
    Downloads: 0 This Week
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  • 11
    The NT POSIX C Runtime Library is an IEEE standard runtime library for the NT POSIX subsystem. It can be used as a complete replacement or a side by side alternative for what is shipped with the Interix SDK.
    Downloads: 0 This Week
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  • 12
    SCOF provides a C/C++ toolchain that is easy to build, extend, and even embed within custom applications that wish to parse and interpret source code. It's goal is to be a C/C++ framework that is modular and easy to understand from beginning to end.
    Downloads: 0 This Week
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  • 13
    Tsunami Programming Language
    Tsunami is an open-source high performance computing language. With it you can write streaming data-parallel algorithms that utilize GPGPUs for orders-of-magnitude speed-up with the ease of writing sequential algorithms.
    Downloads: 0 This Week
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  • 14
    Unlike not completyely shared kconfig tool (see kernel config), bozconfig is dedicated to be the most common and redistributable config tools set.
    Downloads: 0 This Week
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  • 15
    Downloads: 0 This Week
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  • 16

    devkitPro

    Homebrew toolchains for wii, gamecube, 3ds, ds, gba, gp32 and psp

    This project is for homebrew console development tools based on the gnu compiler collection with additional tools and libraries to aid programming each supported console. The windows variants are built with MinGW.
    Downloads: 0 This Week
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  • 17
    jRate is a real-time Java compiler and runtime system (based on GNU GCJ) with support for much of the Real-Time Specification for Java (RTSJ), including threading constructs with real-time constraints, asynchronous event handling, and memory regions.
    Downloads: 0 This Week
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  • 18
    mspgcc4 is no longer supported. Please use the newer toolchain at the MSPGCC project. (This was a port of the GCC 4.x branch to the Texas Instruments MSP430 microcontroller core. It is based on the MSPGCC project that is stuck with GCC 3.2.3.)
    Downloads: 0 This Week
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  • 19
    Moved to https://github.com/gentoo/parity
    Downloads: 0 This Week
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  • 20
    WGCC has been superseded by parity (http://www.sf.net/projects/parity). Please use parity for new projects!
    Downloads: 0 This Week
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  • 21
    xSTreamC is a streaming language developed by STMicroelectronics to support the mapping of data intensive streaming applications on distributed multiprocessor SoCs. A compiler and a simulation library are provided.
    Downloads: 0 This Week
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